What is the difference between a ratio scale of measurement and an interval scale of measurement?
A)A ratio scale of measurement has a zero value that actually means "nothing" or "the absence of something," but an interval scale does not.
B)An interval scale of measurement is a type of measurement used for categorical measurements, but a ratio scale is used for quantitative measurements.
C)An interval scale has equal intervals, but a ratio scale does not.
D)A ratio scale of measurement cannot be used to compare people's scores, but interval scales can (e.g., Phillip is twice as fast).

Question

Quizplus · Accepted Answer

The key difference between a ratio scale of measurement and an interval scale of measurement is that a ratio scale has a true zero point, which represents the complete absence of the thing being measured. An interval scale, on the other hand, has equal intervals between measurement points, but does not necessarily have a true zero point. For example, temperature measured on a Celsius scale is an interval scale because the differences between each degree are the same, but zero degrees Celsius does not represent a complete absence of temperature. In contrast, weight measured on a scale that starts at zero is a ratio scale because a weight of zero actually means there is no weight present.

What Is the Difference Between a Ratio Scale of Measurement